TTM
15.7%
YoY change
−3.55pp
Trough year (2023)
9.7%
Peak year (1985)
100.0%
Latest annual
18.2%
Operating Margin history chart for California Water Service Group (CWT) from 1985 to 2025
Latest: 18.2%
Operating Margin change chart for California Water Service Group (CWT) from 1985 to 2025
Latest: −3.55pp
Operating Margin history table for California Water Service Group (CWT) from 1985 to 2025
| 2025 | 18.2% | -3.55pp | ||
| 2024 | 21.7% | +12.00pp | ||
| 2023 | 9.7% | -5.38pp | ||
| 2022 | 15.1% | -0.95pp | ||
| 2021 | 16.0% | -1.18pp | ||
| 2020 | 17.2% | +3.29pp | ||
| 2019 | 13.9% | -1.92pp | ||
| 2018 | 15.8% | +1.64pp | ||
| 2017 | 14.2% | +1.68pp | ||
| 2016 | 12.5% | +0.41pp | ||
| 2015 | 12.1% | -1.60pp | ||
| 2014 | 13.7% | +1.03pp | ||
| 2013 | 12.7% | -0.52pp | ||
| 2012 | 13.2% | -0.20pp | ||
| 2011 | 13.4% | -0.04pp | ||
| 2010 | 13.4% | +0.49pp | ||
| 2009 | 12.9% | -7.05pp | ||
| 2008 | 20.0% | +3.07pp | ||
| 2007 | 16.9% | +0.29pp | ||
| 2006 | 16.6% | -2.04pp | ||
| 2005 | 18.7% | +0.09pp | ||
| 2004 | 18.6% | +3.00pp | ||
| 2003 | 15.6% | -0.73pp | ||
| 2002 | 16.3% | +2.16pp | ||
| 2001 | 14.1% | -4.16pp | ||
| 2000 | 18.3% | -2.45pp | ||
| 1999 | 20.7% | -1.06pp | ||
| 1998 | 21.8% | -2.89pp | ||
| 1997 | 24.7% | +1.43pp | ||
| 1996 | 23.2% | +1.93pp | ||
| 1995 | 21.3% | -0.99pp | ||
| 1994 | 22.3% | -77.69pp | ||
| 1993 | 100.0% | 0.00pp | ||
| 1992 | 100.0% | 0.00pp | ||
| 1991 | 100.0% | 0.00pp | ||
| 1990 | 100.0% | 0.00pp | ||
| 1989 | 100.0% | 0.00pp | ||
| 1988 | 100.0% | 0.00pp | ||
| 1987 | 100.0% | 0.00pp | ||
| 1986 | 100.0% | 0.00pp | ||
| 1985 | 100.0% | — |
- 202518.2%-3.55pp
- 202421.7%+12.00pp
- 20239.7%-5.38pp
- 202215.1%-0.95pp
- 202116.0%-1.18pp
- 202017.2%+3.29pp
- 201913.9%-1.92pp
- 201815.8%+1.64pp
- 201714.2%+1.68pp
- 201612.5%+0.41pp
- 201512.1%-1.60pp
- 201413.7%+1.03pp
- 201312.7%-0.52pp
- 201213.2%-0.20pp
- 201113.4%-0.04pp
- 201013.4%+0.49pp
- 200912.9%-7.05pp
- 200820.0%+3.07pp
- 200716.9%+0.29pp
- 200616.6%-2.04pp
- 200518.7%+0.09pp
- 200418.6%+3.00pp
- 200315.6%-0.73pp
- 200216.3%+2.16pp
- 200114.1%-4.16pp
- 200018.3%-2.45pp
- 199920.7%-1.06pp
- 199821.8%-2.89pp
- 199724.7%+1.43pp
- 199623.2%+1.93pp
- 199521.3%-0.99pp
- 199422.3%-77.69pp
- 1993100.0%0.00pp
- 1992100.0%0.00pp
- 1991100.0%0.00pp
- 1990100.0%0.00pp
- 1989100.0%0.00pp
- 1988100.0%0.00pp
- 1987100.0%0.00pp
- 1986100.0%0.00pp
- 1985100.0%—
Operating Margin values are taken from California Water Service Group's reported income statements (quarterly 10-Q and annual 10-K filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the filing date. YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.
About Operating Margin at California Water Service Group (CWT)
According to California Water Service Group's latest reported financial statements, the company's latest reported operating margin is 15.7%. Operating margin is operating income divided by revenue — the share of each sales dollar left after cost of goods sold and operating expenses (SG&A, R&D), but before interest and taxes. It isolates how profitable the core business is before financing and tax decisions, so it is comparable across companies with different capital structures.
Headline figure above is from the reporting period ending (reported ). Chart and table below cover the full reported history back to .
In 2025, California Water Service Group (CWT) operating margin totalled 18.16% – contracted 3.6 percentage points year-over-year.
Across the available history, operating margin reached its high of 100.00% in 1985 and its low of 9.71% in 2023.
California Water Service Group Operating Margin by Year
California Water Service Group Operating Margin 2025: 18.2%
California Water Service Group posted operating margin of 18.16% in 2025, contracted 3.6 percentage points from 2024.
California Water Service Group Operating Margin 2024: 21.7%
In 2024, California Water Service Group reported operating margin of 21.71%, expanded 12.0 percentage points from 2023.
California Water Service Group Operating Margin 2023: 9.7%
California Water Service Group operating margin in 2023 was 9.71%, contracted 5.4 percentage points from 2022. This figure represents the lowest annual value in the available history.
California Water Service Group Operating Margin 2022: 15.1%
2022's operating margin for California Water Service Group came in at 15.08%, contracted 0.9 percentage points from 2021.
California Water Service Group Operating Margin 2021: 16.0%
California Water Service Group operating margin in 2021 was 16.03%.
See more financial history for California Water Service Group (CWT).
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